SHEIN! Terrible ****S and ****MERS

Placed an order on the 10th March. Everything went smoothly until I received an email from SHEIN stating that my order was being help by customs. I was notified late in the evening so left it for the next morning. The next morning I note that my order had moved past clearance and is marked “customs released” and “transferred to courier” so I assume that the issue has been resolved. My order was supposed to be delivered between the 20-26 March so I wait this out. Today (27 March) I decide to give Buffalo Couriers a call and they inform me that my order is still in customs and that I should wait 5-8 working days for it to be cleared. Not once has SHEIN informed me that my order is still at customs, my order status shows that it had reached SA on 19 March and that Buffalo airport warehouse received this on 20th March. Since the 24 of March the status has been that my order remains in active transit and they’ll promptly provide updates. That was 3 days ago… how the hell is my order still in customs when on their side my order had already progressed passed that?!